Machine for beaming knitted fabrics of common and anti-ladder type or the like on to dyeing beams or cardboard rollers

ABSTRACT

Apparatus for winding knitted fabrics onto a beam or roll comprises an endless conveyor feeding to a cylinder which is in peripheral contact with the growing roll of fabric on the beam and also tangential to the endless conveyor. As the diameter of the roll of fabric on the beam increases, the cylinder is pushed away from the beam and this actuates a control to move the conveyor away from the beam so that the conveyor and the cylinder and the periphery of the roll of fabric maintain their same general relation to each other.

United States Patent Piattelli 1451 July 11, 1972 [54] MACHINE FORBEAMING KNITTED [56] References Cited LADDER TYPE OR THE LIKE ON TO380,139 3/1888 S cholfield ..26/61 DYEING BEAMS 0R CARDBOARD 2,196,0004/1940 Richardson. ....242/65 ROLLERS 2,261,014 10/1941 Bernard....242/68.4 2,914,267 11/1959 Means ....242/67.1 [721 lnvemo" GiuseppeMomecatml-Temlea 3,075,719 1 /l963 Hornstein et al.... .242/68.4 x Italy3,179,976 4/1965 Nash ..26/61 x [73] Assignee: offi i Meccaniche SantaLucia 3,279,718 10/1966 Arterton et a1. ..242/67.] [22] Filed: April 22,1969 Primary Examiner-Stanley N. Gilreath Assistant Examiner-Werner H.Schroeder [21] Appx'No'z 818,342 AttorneyYoung&Thompson [30] ForeignApplication Priority Data [57] ABSTRACT Apparatus for winding knittedfabrics onto a beam or roll Aplll 29, 1968 Italy .3301 lA/68 comprisesan endless conveyor feeding to a cylinder which is in peripheral contactwith the growing roll of fabric on the [52] U.S.CI..242/67.1,242/65,242/68.4 beam and also tangential to the endlessconveyon As the [51] InLCl ..B65h 17/08 dia et r of the roll of fabricon the beam increases, the [58] Field of Search ..242/55, 56,64, 65, 66,67.1, cylinder is pushed away from the beam and this actuates a controlto move the conveyor away from the beam so that the conveyor and thecylinder and the periphery of the roll of fabric maintain their samegeneral relation to each other.

3 Claims, 3 Drawing Figures PKTENTEDJUL 1 1 I972 SHEET 1 BF 3 INVENTORyou, 15%,M

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SHEET 2 [3F 3 I m 9 L I MACHINE FOR BEAMING KNI'I'I'ED FABRICS OF COMMONAND ANTI-LADDER TYPE OR THE LIKE ON TO DYEING BEAMS OR CARDBOARD ROLLERSThe object of the present invention is to provide a machine for beamingfabrics of various kinds according to the chain system, as applied onthe tenter frames, said beaming operation being performed in such amanner that the fabric width is constantly maintained under adimensional control so that said fabric will be applied successively onthe dyeing beam with a dimension predetermined by the operator andcompatible with the fabric characteristics and having each of itsselvages or edges well laid out and arranged exactly in a line.

It is known that for carrying out modern treatments the textile artrequires the provision of beaming machines of such a type which allowthe fabric to be beamed in such a manner that each of its selvages ismaintained well spread and laid out exactly in a line, its width has avalue determined in advance, while its winding tension is dulycontrolled. These requirements become more important in a dyeing processof antiladder knitted fabrics and jersey fabrics, where the mostconsiderable faults result from incorrect winding of the fabric on thedyeing beam.

The present invention solves the main problems of the beaming process,since it provides that the fabric is fed entirely spread on the chainsand that it is caused to emerge from the grip of the chains and to windon a rubber coated roller without any loss of continuity, said roller orcylinder acting against the effect of the winding unit so that itenables the fabric to be laid on the beam, maintaining said'fabricalways guided and accompanied during the beaming operation so that saidfabric can be wound with a predetermined width and having its selvageswell spread and exactly aligned.

The peripheral speed of the fabric roll is always maintained constanteither at the minimum or the maximum diameter.

The following specification and the accompanying drawings will disclosein more detail the principle of the invention.

In the drawings:

FIG. 1 shows a diagrammatic side view of the beaming machine;

FIG. 2 is a top view of said machine, partly broken away; and

FIG. 3 is a fragmentary side view of the beam and its connecting andsupporting means.

Now referring to FIG. 1, the machine comprises the entry frame head 2for the fabric 1, said head being associated with a braking means 3 anda guiding loose roller 4; 5 is a platform for the operator. The beam 7is carried by the stationary shoulders 6. The feed unit is pivotallymounted at 8 and comprises the shoulders 9, an idle cylinder 10,spreading rollers 11 driven at a variable speed and an idle cylinder 12designed to control the amplitude of the wrapping arc of the fabricaround the spreading rollers 1 1; 13 is a selvage opening out device forselvedge provided two, three or four rollers. Across member 14 connectsthe shoulders 9 to each other, on said shoulders being mounted all thecontrol devices; said cross member 14 serves also to carry the movableshoulders 15 of an endless chain conveyor device, said shoulders 15being each articulated about a hinge 23 having a vertical axis. Each ofsaid shoulders 15 at its other end rests on the cross member 14 by meansof a wheel 36 and can be caused to rotate about its hinge 23 by means ofa screw 16 (according to the direction shown by an arrow in FIG. 2).

The female thread, wherein each screw 16 is engaged, is slidably housedin an elongated hole 37 in shoulder 15 in order to allow swingingmovements of the pertinent shoulder 15 about its hinge 23, saidshoulders 15 being able to be adjusted independently of each other.

17 are the chains which may be of any suitable kind, the tensioning ofwhich is controlled by an automatic tensioning device 18; at 19 isindicated a short rectilinear section of the chain length, and 20 is thedriving shaft of the chains driven by gears 21. The distance between theshoulders supporting the chains 17 may be adjusted by means of the bigscrews 22 for the purpose of obtaining the desired width of the fabric.

On the base 24 which connects the stationary shoulders 6 to each otheris mounted a driving device 25 designated to raise or lower the wholeunit which feeds the fabric. Said driving device 25 is pivotallyconnected to said base 24 as well as to the shoulders 9 so as to be ableto transmit up and down movements under the control of control means.Levers 26 are pivoted at 27 and carry a cylinder 28 which rotates insynchronism with the chain speed. A device 29 is provided so as to actinresponse of the angular displacements of the lever arms 26 so as toimpart a start signal to the device 25 so that this latter can cause theassembly to move away from the beam 7 as the diameter of the fabric rollon the beam increases.

In the top view of FIG. 2 may be seen some of the structure as alreadydescribed with respect to FIG. 1.

FIG. 3 shows a detail of means provided to clamp adjustably the beam 7,said means comprising a clutch 31 associated with gears which enable toadjust the clamping force acting on the beam 7, a shaft 32 carrying aworm screw, a spiral ring bevel gear 33 meshing with a helical rack,made integral with a clamping hollow shaft 34, said transmissionenabling to transform a rotary motion of the spiral ring bevel gear 33into an axial displacement of the shaft 34. The assembly is driven by anelectric motor not shown in the drawings.

The principle on which is based the present invention consists in thefact that the beam is mounted in a fixed position so that it does nottransmit its weight, which increases the more and more fabric will bewound onto it and onto the other devices of the machine, and that theincrease of the beam diameter moves a swinging cylinder 28. Saidswinging cylinder 28 feeds the fabric at the same speed as the chain 17travel and also provides to take off said fabric from said chains,alwaysmaintaining itself tangent to these latter.

The increase in the beam diameter generates an angular movement of thelever arm which by means of the device 29 actuates a control device 25which causes the feed unit to be moved downwards together with the chainsystem.

The swinging cylinder 28 always remains against the wound up fabric 1 sothat in response to the diameter increase of the fabric roll on the beam7 there occurs a downwards displacement of the assembly, thanks to thecontrol device 29 associated with the levers 26 carrying the saidcylinder 28.

What is claimed is:

1. Apparatus for winding fabric on a roll, comprising a rotatable rollfor receiving fabric thereon, an endless conveyor for feeding fabric inthe direction of said roll, a cylinder that bears against said roll andis tangential to said conveyor and about which said fabric passes fromsaid conveyor to said roll, said cylinder bearing peripherally againstthe fabric on the roll and having its axis parallel to the axis of saidroll, means mounting said cylinder for movement away from said rollunder the pressure of the fabric of increasing diameter on said roll,means mounting said conveyor for movement toward and away from saidroll, and means responsive to said movement of said cylinder to movesaid conveyor away from said roll thereby to maintain said cylindertangential to said conveyor.

2. Apparatus as claimed in claim 1, said cylinder being disposed beneathsaid roll and said conveyor being disposed beneath said cylinder, saidconveyor moving downward upon an increase in diameter of said roll.

3. Apparatus as claimed in claim 2, said means mounting said cylindercomprising a lever arm pivotally mounted inter mediate its length andcarrying said cylinder at the end and said responsive means at its otherend.

1. Apparatus for winding fabric on a roll, comprising a rotatable rollfor receiving fabric thereon, an endless conveyor for feeding fabric inthe direction of said roll, a cyliNder that bears against said roll andis tangential to said conveyor and about which said fabric passes fromsaid conveyor to said roll, said cylinder bearing peripherally againstthe fabric on the roll and having its axis parallel to the axis of saidroll, means mounting said cylinder for movement away from said rollunder the pressure of the fabric of increasing diameter on said roll,means mounting said conveyor for movement toward and away from saidroll, and means responsive to said movement of said cylinder to movesaid conveyor away from said roll thereby to maintain said cylindertangential to said conveyor.
 2. Apparatus as claimed in claim 1, saidcylinder being disposed beneath said roll and said conveyor beingdisposed beneath said cylinder, said conveyor moving downward upon anincrease in diameter of said roll.
 3. Apparatus as claimed in claim 2,said means mounting said cylinder comprising a lever arm pivotallymounted intermediate its length and carrying said cylinder at the endand said responsive means at its other end.